Features: brand new and high quality Built-in multiple for protection functions such as overvoltage, short circuit, overheating, and overcurrent. Support size: 3.5 inches SATA serial port, the maximum thickness does not exceed 9.5 mm The shiny aluminum alloy enclosure is designed for good heat dissipation, fine workmanship, compact appearance, fashionable and practical. Transmission Interface: External USB3.0 backward for 2.0 Internal: SATA1 and SATA2,SATA3. Ultra-fast transfer speed: up to 5Gpbs transmission speed.Type C transmission interface you can plug it in,both positive and negative can be blind inserted. Specifications: Material: Alumminum Alloy Support System: for Windows/for Mac OS/Linux External Interface: Type C/USB-B Suitable for desktop 3.5 inch HDD with SATA port Colour: Silver Capacity:8TB(max) Speed: 5Gbps Size: approx 188x115mm/7.4x4.52in Note: Only the above package content, other products are not included. Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm. Package includes: Type A /B Optional Type A 1 x HDD Enclosure (USB3.0 Port) 1 x Type C to USB Cable 1 x Product Use Manual Type B 1 x HDD Enclosure (Type C Port) 1x Type C to Type C Cable 1x Product Use Manual